Security Engineer, AI & Cloud Platform

Bain & Company, Inc.; City of Westminster; On-site; GBP 96,000 - 116,000; Full time

Benefits offered by this job

Medical, dental & vision insurance

Paid time off

Job summary

Bain & Company, Inc. seeks a Lead Security Engineer to own the security posture of Bain's Growth AI Performance System across cloud, APIs, data pipelines, and AI workflows.

You will embed security into the development lifecycle, strengthen infrastructure, and lead responses to threats, partnering with engineering and client stakeholders to meet enterprise security needs while enabling rapid innovation.

Qualifications

• 5+ years of hands-on cybersecurity or cloud security experience.
• Strong experience securing Azure or AWS cloud environments.
• Experience owning security controls for cloud-native apps and incident response.
• Understanding of OAuth 2.0, RBAC, and least-privilege concepts.
• Familiarity with AI security risks and DevSecOps workflows.

Responsibilities

• Secure cloud infrastructure across Azure or AWS and manage IAM.
• Embed security into CI/CD pipelines and IaC deployments.
• Lead threat modeling, security reviews, and incident response.
• Develop monitoring for suspicious AI activity and data protection.

Skills

Cloud security engineering

Azure & AWS security

Threat modeling

Security testing

DevSecOps integration

Incident response

Identity & access management

Least privilege principles

Education

Bachelor's degree in CS/Engineering or related field

Tools

Garak

PyRIT

MITRE ATLAS

Job description

As a Lead Security Engineer, you'll take ownership of the security posture of Bain's Growth AI Performance System, spanning cloud infrastructure, APIs, agentic AI workflows, data pipelines, and knowledge systems. This is a hands‑on engineering role where you'll embed security into the development lifecycle, strengthen infrastructure, conduct threat modeling and security testing, and lead responses to emerging threats. You'll play a critical role in securing AI-powered systems against risks such as prompt injection, data poisoning, unauthorized access, and sensitive data exposure. Working closely with engineering teams and client stakeholders, you'll help ensure our platform meets enterprise security expectations while enabling rapid innovation. What You'll Do Cloud Infrastructure & Platform Security

Cloud Infrastructure & Platform Security

• Secure and harden cloud infrastructure across Azure or AWS, including networking, containers, APIs, storage, and data services.
• Design and maintain authentication, authorization, identity management, and least-privilege access controls.
• Own secrets management, certificate rotation, secure configuration standards, and security monitoring.
• Partner with DevOps engineers to embed security controls into infrastructure-as-code, deployment pipelines, and production environments.

AI & Agentic Security

• Design and implement safeguards against AI‑specific threats, including prompt injection, jailbreaking, data poisoning, model exfiltration, and agentic workflow exploitation.
• Secure retrieval‑augmented generation (RAG) pipelines, vector stores, agent memory systems, and tool integrations.
• Conduct structured security testing and red teaming of AI-powered workflows to identify vulnerabilities and implement effective defenses.
• Develop monitoring and detection capabilities for suspicious AI activity, unauthorized access, and workflow misuse.
• Define AI‑specific security incidents and lead incident response activities when needed.

Threat Management, Compliance & Client Engagement

• Lead threat modeling and security reviews for new platform features, integrations, and architectural changes.
• Embed security requirements, automated testing, and review processes into agile engineering workflows.
• Support compliance with applicable GDPR obligations and SOC 2 controls.
• Maintain security documentation and evidence to support client due diligence and compliance reviews.
• Communicate security risks, controls, and incident response procedures to client security teams and senior stakeholders.
• Stay current with emerging AI security threats, frameworks, and tools, sharing knowledge and best practices across the engineering team.

Qualifications

• At least 5 years of hands‑on experience in cybersecurity, cloud security engineering, or related roles securing production systems.
• Strong experience securing Azure or AWS cloud environments, including infrastructure, networking, identity and access management, secrets management, and monitoring.
• Demonstrated experience owning security controls and practices for cloud-native applications, including threat modeling, vulnerability remediation, and incident response.
• Strong understanding of authentication and authorization, including role‑based access control, OAuth 2.0, token validation, and least‑privilege principles.
• Understanding of AI security risks, including prompt injection, data poisoning, sensitive data leakage, and vulnerabilities in AI‑powered applications.
• Experience with structured threat modeling methodologies and security testing.
• Experience integrating security practices into DevSecOps workflows and continuous integration and deployment pipelines.
• Working knowledge of GDPR, SOC 2, and enterprise data security requirements.
• Ability to collaborate effectively with cross‑functional engineering teams and communicate security considerations to technical and nontechnical stakeholders.
• An associate's or bachelor's degree in computer science, engineering, mathematics, or a related technical field, or an equivalent combination of education, training, and experience., Experience securing large language model applications, retrieval‑augmented generation pipelines, or agentic AI systems.
• Familiarity with AI security frameworks such as OWASP Top 10 for LLM Applications and MITRE ATLAS.
• Experience using AI security testing tools such as Garak, PyRIT, or equivalent solutions.
• Experience supporting enterprise client security reviews and compliance audits.
• Experience working in agile product engineering or consulting environments.
• Active use of AI‑assisted development tools and a commitment to continuously developing AI security expertise.

We are proud to be consistently recognized as one of the world's best places to work. We are currently the top ranked consulting firm on Glassdoor's Best Places to Work list and have earned the #1 overall spot a record seven times. Extraordinary teams are at the heart of our business strategy, but these don't happen by chance. They require intentional focus on bringing together a broad set of backgrounds, cultures, experiences, perspectives, and skills in a supportive and inclusive work environment. We hire people with exceptional talent and create an environment in which every individual can thrive professionally and personally.

Who You'll Work With

You’ll join the team building Bain's Growth AI Performance System, an integrated suite of AI‑powered decision‑making tools that helps large organizations make smarter commercial decisions. Our team combines the analytical depth and client relationships of a leading consultancy with the technical ambition and pace of a product company. You’ll work alongside AI engineers, platform engineers, DevOps specialists, and product teams to build secure, scalable solutions that help clients determine where to invest, where to focus, and how to win. You’ll have the opportunity to shape security architecture and engineering practices from an early stage, with the support and global reach of Bain. As our platform evolves through real‑world client engagement, your work will directly influence how we protect enterprise data, secure AI‑powered workflows, and deliver trusted solutions at scale.

Compensation

Compensation for this role includes base salary, annual discretionary performance bonus, 401(k) plan with an annual employer contribution based on years of service and Bain's best in class benefits package (details listed below). Some local governments in the United States require a good‑faith, reasonable salary range to be included in job postings for open roles. The estimated annualized compensation for this role is as follows:

• In Massachusetts, the good‑faith, reasonable annualized full‑time salary range for this role is between 127k and 153k.
• In Illinois, the good‑faith, reasonable annualized full‑time salary range for this role is between 121k and 146k.
• Placement within these ranges will vary based on several factors including, but not limited to experience, education, licensure/certifications, training and skill level.
• Annual discretionary performance bonus.
• This role may also be eligible for other elements of discretionary compensation.
• 4.5% 401(k) company contribution, which increases after 3 years of service and is 100% vested upon start date.
• For all other locations, the good‑faith, reasonable annualized full‑time salary range for this role is commensurate with competitive geographic market rates for this role and will vary based on several factors including, but not limited to experience, education, licensure/certifications, training and skill level.

Benefits

• Bain pays 100% individual employee premiums for medical, dental and vision programs, offering one of the most comprehensive medical plans for employees without impacting your paycheck.
• Generous paid time off, including parental leave, sick leave and paid holidays.
• Fully vested 401(k) company contribution.
• Paid Life and Long‑Term Disability insurance.